As can be observed on any sunny day, the shadows are longest at sunrise and at sunset.
That depends where you are on the planet. Your shadow would be longest if you were standing on a rotational pole at the time of equinox. At this point your shadow would be infinity long as it would be "projected" into space. However as a rule of thumb one's shadow is longest when the sun is rising or setting but high enough to cast your shadow.
A shadow is longest in the early morning or late afternoon when the angle of the sun is low in the sky. This occurs during sunrise and sunset when the sun is closest to the horizon, causing objects to cast longer shadows.
The sun casts the longest shadows immediately after sunrise and immediately before sunset.
In therory, infinitely long. In practice, the shadow will fade into dispersed light.
During a solar eclipse. --- ANSWER --- A Solar eclipse occurs when the Moon passes between the Sun and the Earth. The shadow cast by the Moon falls on the earth during 'daytime'. Because the Moon is just the right distance from the Sun it can cover it completely for a very short time as it passes across it's face.
Summer would probably have the the shortest shadow because the sun is right over us and winter would have the longest because the sun isn't right over us. The length of the shadow really doesn't depend on the seasons. It is really about where the sun is in the sky. But in order for there to be an actual shadow, the sun must be visible. So in summer you would find the most shadows but not the longest. You can get a long shadow in any season as long as the sun shines.
The shadow is cast by the earth upon the moon.
During a solar eclipse.
Yes, the moon can cast a shadow. During a lunar eclipse, when the Earth comes between the sun and the moon, the Earth's shadow is cast onto the surface of the moon, causing it to temporarily darken.
The dark shadow cast by the Earth on the Moon during a lunar eclipse is called the umbra. This is the central and darkest part of the shadow where the light from the Sun is completely blocked.
During a lunar eclipse, the Moon passes into the shadow cast by the Earth.
penumbra or umbra.